georefid:2006-066605georefid:2006-066600SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/odp.proc.sr.195.102.2005<gco:CharacterString>Iodine and boron in Mariana serpentinite mud volcanoes (ODP Legs 125 and 195); implications for forearc processes and subduction recycling</gco:CharacterString>2006-01-01publicationgeorefid:2006-066605doi:10.2973/odp.proc.sr.195.102.2005Snyder, Glen T.Rice University, Earth Science Department, Houston, TX, United StatesauthorSavov, Ivan P.Geological Survey of Canada, CanadaauthorMuramatsu, YasuyukiOcean Drilling Program, United StatesauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Shinohara, Masanao (editor), Salisbury, Matthew H. (editor), Richter, Carl (editor), Araki, Eiichiro, Barr, Samantha R., D'Antonio, Massimo, Dean, Simon M., Diekmann, Bernhard, Edwards, K. Michelle, Fryer, Patricia B., Gaillot, Philippe J., Hammon, William S., III, Hart, David, Januszczak, Nicole, Komor, Stephen C., Kristensen, Mette B., Lockwood, John P., Mottl, Michael J., Moyer, Craig L., Nakahigashi, Kazuo, Savov, Ivan P., Su Xin, Wei, Kuo-Yen, Yamada, Tomoaki, Proceedings of the Ocean Drilling Program; scientific results; seafloor observatories and the Kuroshio Current; covering Leg 195 of the cruises of the drilling vessel JOIDES Resolution; Apra Harbor, Guam, to Keelung, Taiwan; Sites 1200-1202; 2 March-2 May 2001195Iodine and boron were analyzed in pore fluids, serpentinized ultramafic clasts, and the serpentinized mud matrix of the South Chamorro Seamount mud volcano (Ocean Drilling Program Leg 195 Site 1200) to determine the distribution of these elements in deep forearc settings. Similar analyses of clasts and muds from the Conical Seamount mud volcano (Leg 125 Site 779) were also carried out. Interstitial pore fluids are enriched in boron and iodine without appreciable change in chloride concentration relative to seawater. Both the ultramafic clasts and the associated serpentinized mud present the highest documented iodine concentrations for all types of nonsedimentary rocks (6.3-101.7 mu mol/kg). Such high iodine concentrations, if commonplace in marine forearc settings, may constitute a significant, previously unknown reservoir of iodine. This serpentinized forearc mantle reservoir may potentially contribute to the total crustal iodine budget and provide a mechanism for its recycling at convergent plate margins. Both clasts and mud show concurrent enrichments in boron and iodine, and the similarity in pore fluid profiles also suggests that these two incompatible, fluid-mobile elements behave similarly at convergent plate margins.completedGeochemistry of rocks, soils, and sedimentsIgneous and metamorphic petrologyboronConical Seamountgeochemistryhalogensigneous rocksiodineLeg 125Leg 195Mariana Trenchmetaigneous rocksmetamorphic rocksmetasomatic rocksmetasomatismmud volcanoesNorth PacificNorthwest PacificOcean Drilling ProgramODP Site 1200ODP Site 779Pacific Oceanplate tectonicsplutonic rockspore waterrecyclingserpentiniteserpentinizationsubductionsubmarine volcanoesultramaficsvolcanoesWest Pacificurn:org.iodp:exp:125urnlargerWorkCitationcampaignurn:org.iodp:exp:195urnlargerWorkCitationcampaignurn:org.iodp:exp:195:site:1200urnlargerWorkCitationstudyurn:org.iodp:exp:195urnlargerWorkCitationcampaignurn:org.iodp:exp:125:site:779urnlargerWorkCitationstudyurn:org.iodp:exp:125urnlargerWorkCitationcampaignEnglishgeoscientificInformation146.0000146.414513.470019.3045Available only on CD-ROM in PDF format and on the Web in PDF or HTMLapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/195_SR/VOLUME/CHAPTERS/102.PDFdownload